I wouldn't skimp on either the CPU or GPU. Some games are either CPU-intensive, GPU-intensive, or both. I wouldn't risk the performance hit just to save a few bucks. He should either skimp on another area and upgrade later (like the hard drive or something)... or wait until he has a couple hundred more bucks. That's my 2 cents.

The Pentium G2030 is pure crap and doesn't belong in any build, budget or not. That would be okay if all he wanted to do was check his e-mail and use Word.